The target was achieved by only three of the 43 planning authorities and, overall, only 59.8 per cent of all planning applications were processed within the target period.
These figures represent a slight drop in performance compared with the equivalent period in the previous year. Over 90 per cent of all applications considered over the period were approved.
Mr Kynoch said: 'It is disappointing that planning authorities' performance continued to fall short of national targets and that performance actually deteriorated compared with the previous year.
'In addition, we intend, next year, to launch a new Audit Unit to work with planning authorities to improve their performance.'